CVE-2026-18331
Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More に報告された脆弱性
概要
The Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'frm_user_id' parameter in all versions up to, and including, 6.33.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. By forging frm_user_id to match an administrator's user ID — discoverable via the public WordPress REST API — an unauthenticated attacker causes wp_kses_post() to serve as the only output filter, which preserves the injected payload structurally intact; the plugin's admin JavaScript then decodes and executes it automatically on page load.
影響を受けるバージョン
- 0以上 〜 6.33.1以下
対処方法
Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More を 6.34 以降に更新してください。これで本脆弱性は解消します。
Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More の他の脆弱性を見る →
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30秒で無料診断する参照
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/controllers/FrmEntriesController.php#L752
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/controllers/FrmHooksController.php#L69
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/models/FrmEntry.php#L819
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/models/FrmEntry.php#L846
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/models/FrmEntry.php#L982
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/models/fields/FrmFieldType.php#L1830
- https://plugins.trac.wordpress.org/browser/formidable/trunk/classes/models/fields/FrmFieldType.php#L2083
- https://plugins.trac.wordpress.org/browser/formidable/trunk/js/formidable_admin.js#L1